# Timewarrior Holiday Files The holiday files were created by the `refresh` script using data from [holidata.net](https://holidata.net). They can be updated using the following command: ```shell $ ./refresh ``` This updates all present holiday files with holiday data for the current and the following year (default). If you need another locale (for example `sv-SE`), do this: ```shell $ ./refresh --locale sv-SE ``` This creates a file `holidays.sv-SE` containing holiday data for the current and following year. The id for the locale is composed of the [ISO 639-1 language code](https://en.wikipedia.org/wiki/ISO_639-1) and the [ISO 3166-1 alpha-2 country code](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2). If you need a specific locale region, do this: ```shell $ ./refresh --locale de-CH --region BE ``` For regions use the corresponding [ISO 3166-2 code for principal subdivisions](https://en.wikipedia.org/wiki/ISO_3166-2). To specify a set of years to update, do this: ```shell $ ./refresh --locale en-US --year 2020 2021 2022 ``` If the locale is not yet supported by [holidata.net](https://holidata.net), or there is no data available for the requested year, you will see an error.